Enhance the performance and sound of your Audi RS4 or RS5 B9 2.9 TFSI with the CRT Performance 200 CPSI Sport Catted Downpipe, featuring an integrated high-temperature heat shield. This precision-engineered upgrade significantly reduces exhaust backpressure compared to restrictive factory catalysts, unlocking faster turbo spool, sharper throttle response, and a deep, refined exhaust tone — all while maintaining moderate emissions.

Key Features

• Reduced Backpressure – Faster turbo response and improved throttle sensitivity.

• Weight Reduction – Lighter than OEM catalytic converters for enhanced performance.

• Optimized Exhaust Flow – Smooth mandrel bends minimize turbulence for maximum efficiency.

• Refined Sound – Sporty, resonant tone without the harshness of a catless setup.

• Lower Emissions – 200 CPSI sport catalyst offers an ideal balance between power and eco-conscious performance.

Materials & Construction

• Handcrafted from 304 Stainless Steel – Ensures high resistance to heat and corrosion.

• CNC-Machined Flanges – Precision-fit design for OEM-level installation.

• 200-Cell High-Flow Catalyst (200 CPSI) – Maximizes exhaust gas velocity while maintaining filtration efficiency.

• TIG-Welded by Hand – Motorsport-grade durability and flawless finish.

• Premium Thermal Insulation Wrap – Reduces radiant heat and protects surrounding components.

Testing & Durability

Each CRT Performance downpipe undergoes extensive road and track testing to guarantee consistent flow, long-term reliability, and exceptional heat resistance even under extreme load.

Important Notice

• Designed for vehicles without OPF/GPF filters.

• The use of a sport catalytic converter may still trigger a Check Engine Light (CEL) depending on ECU calibration.

• Emissions compliance cannot be guaranteed – intended for off-road or motorsport use only.

Compatibility

• Audi RS4 B9 (2017–2024)

• Audi RS5 F5 (2017–2024)

For non-OPF/GPF models only.